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Range:\u003c\/strong\u003e Performs reliably from -65°F to +450°F (-54°C to +232°C), suitable for both ambient and elevated-temperature hydraulic circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtrusion Resistance:\u003c\/strong\u003e Glass fill reduces material creep and extrusion into clearance gaps, maintaining seal geometry under high-pressure loads.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIndustrial hydraulic cylinders\u003c\/li\u003e\n\u003cli\u003eMobile equipment and heavy machinery\u003c\/li\u003e\n\u003cli\u003ePress and forming equipment\u003c\/li\u003e\n\u003cli\u003eInjection molding and die casting machinery\u003c\/li\u003e\n\u003cli\u003eAerospace and defense hydraulic actuators\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDesigned as a complete assembly for drop-in installation, this piston seal is available in standard bore sizes and can be configured for custom dimensions to meet 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The glass fiber reinforcement dramatically improves the mechanical strength and wear resistance of PTFE, making it the go-to choice for high-load, high-cycle hydraulic systems in industrial, agricultural, and mobile equipment.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Wear Resistance\u003c\/strong\u003e – Glass-filled PTFE compound withstands abrasive media and high-cycle operation far longer than virgin PTFE or rubber alternatives\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Friction, No Stick-Slip\u003c\/strong\u003e – Inherently low coefficient of friction ensures smooth, consistent piston travel and precise actuator control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemically Inert\u003c\/strong\u003e – Resistant to hydraulic oils, water-glycol fluids, phosphate esters, and most aggressive media\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Temperature Range\u003c\/strong\u003e – Performs reliably from -65°F to +500°F (-54°C to +260°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensional Stability\u003c\/strong\u003e – Glass reinforcement minimizes cold flow and extrusion under sustained pressure loads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop-In Replacement\u003c\/strong\u003e – Designed to meet or exceed OEM specifications for standard bore sizes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHydraulic cylinders (double-acting and single-acting)\u003c\/li\u003e\n\u003cli\u003eIndustrial presses and clamping systems\u003c\/li\u003e\n\u003cli\u003eAgricultural and construction equipment\u003c\/li\u003e\n\u003cli\u003eMobile hydraulics and steering systems\u003c\/li\u003e\n\u003cli\u003ePneumatic actuators requiring low breakout force\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eMaterial Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal Material:\u003c\/strong\u003e Glass Filled PTFE (typically 15–25% glass fiber by weight)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergizer\/O-Ring:\u003c\/strong\u003e NBR, FKM, or EPDM (specify when ordering)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e Shore D 60–65 (glass-filled compound)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eOrder by bore diameter and rod diameter, or provide your cylinder specifications for a custom fit. 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The result is a high-performance piston seal engineered for heavy-duty industrial, mobile, and hydraulic press applications where elevated pressures, side loads, and heat dissipation are critical concerns.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutstanding Load Capacity\u003c\/strong\u003e – Bronze reinforcement dramatically increases compressive strength and resistance to extrusion under high-pressure conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Thermal Conductivity\u003c\/strong\u003e – Bronze filler dissipates heat away from the sealing interface, extending seal life in high-cycle or high-speed applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent Wear Resistance\u003c\/strong\u003e – Ideal for applications with metal-to-metal contact risk or abrasive contamination in the hydraulic fluid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Friction Performance\u003c\/strong\u003e – Retains PTFE's inherently low coefficient of friction for smooth, stick-slip-free piston travel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensional Stability\u003c\/strong\u003e – Minimizes cold flow and creep under sustained static or dynamic loads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad Chemical Compatibility\u003c\/strong\u003e – Resistant to petroleum-based hydraulic oils, water-glycol fluids, and most industrial hydraulic media\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHeavy-duty hydraulic cylinders (double-acting and single-acting)\u003c\/li\u003e\n\u003cli\u003eIndustrial presses, injection molding, and metal forming equipment\u003c\/li\u003e\n\u003cli\u003eConstruction, mining, and forestry machinery\u003c\/li\u003e\n\u003cli\u003eHigh-pressure hydraulic actuators and steering systems\u003c\/li\u003e\n\u003cli\u003eApplications with elevated side loads or off-axis forces on the piston\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eMaterial Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal Material:\u003c\/strong\u003e Bronze Filled PTFE (typically 40–60% bronze by weight)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergizer\/O-Ring:\u003c\/strong\u003e NBR, FKM, or EPDM (specify when ordering)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e Shore D 65–70 (bronze-filled compound)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -65°F to +500°F (-54°C to +260°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Bronze\/Gold\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eOrder by bore diameter and rod diameter, or provide your cylinder specifications for a custom fit. 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The glass fiber reinforcement dramatically improves wear resistance and dimensional stability compared to virgin PTFE, making it the go-to choice for custom bore sizes and non-standard cylinder configurations.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Wear Resistance\u003c\/strong\u003e – Glass fill content (typically 15–25%) significantly extends service life under heavy side-loading and continuous reciprocating motion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Friction, No Stick-Slip\u003c\/strong\u003e – PTFE matrix maintains smooth breakout and dynamic sealing, reducing energy consumption and improving actuator response\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical Compatibility\u003c\/strong\u003e – Resistant to a broad range of hydraulic fluids including mineral oil, water-glycol, phosphate ester, and synthetic fluids\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensional Stability\u003c\/strong\u003e – Glass reinforcement minimizes cold flow and extrusion under sustained pressure, maintaining seal geometry over time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-Standard \/ Custom Geometry\u003c\/strong\u003e – Manufactured to your specified bore, rod, and groove dimensions — ideal for OEM replacement, legacy cylinder repair, or custom machine builds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIndustrial hydraulic cylinders (non-standard bore sizes)\u003c\/li\u003e\n\u003cli\u003eAgricultural and mobile hydraulic equipment\u003c\/li\u003e\n\u003cli\u003eHeavy-duty press and clamp cylinders\u003c\/li\u003e\n\u003cli\u003eAerospace ground support and test equipment\u003c\/li\u003e\n\u003cli\u003eCustom OEM hydraulic actuators\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOperating Parameters\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -60°F to +500°F (-51°C to +260°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Rating:\u003c\/strong\u003e Up to 5,000 PSI (345 bar) depending on groove design and backup configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Compatible with most hydraulic fluids, water-based fluids, and mild chemicals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed:\u003c\/strong\u003e Suitable for low-to-medium reciprocating speeds\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eEach assembly is precision-machined or cut to your exact groove specifications. Provide your bore diameter, groove width, groove depth, and system pressure for a custom fit. 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Nylon (polyamide) offers excellent mechanical strength, abrasion resistance, and dimensional stability, making it well-suited for guide rings, wear rings, and piston seal assemblies where structural integrity and low deformation under load are critical.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Mechanical Strength\u003c\/strong\u003e – Nylon's superior tensile and compressive strength resists deformation under sustained hydraulic pressure, maintaining seal geometry throughout the service cycle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent Abrasion Resistance\u003c\/strong\u003e – Outperforms many elastomers in sliding contact applications, extending service life in high-cycle or contaminated fluid environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Friction Performance\u003c\/strong\u003e – Smooth surface finish reduces stick-slip and breakout force, contributing to precise actuator control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensional Stability\u003c\/strong\u003e – Maintains tight tolerances under load, minimizing bypass leakage and improving volumetric efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad Chemical Compatibility\u003c\/strong\u003e – Compatible with mineral-based hydraulic oils, water-glycol fluids, and many synthetic hydraulic media\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight \u0026amp; Machineable\u003c\/strong\u003e – Easy to machine to custom groove profiles, ideal for OEM replacement and non-standard cylinder repair\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIndustrial hydraulic cylinders and actuators\u003c\/li\u003e\n\u003cli\u003eAgricultural and construction equipment hydraulics\u003c\/li\u003e\n\u003cli\u003eMobile hydraulic systems (loaders, lifts, presses)\u003c\/li\u003e\n\u003cli\u003eWear ring and guide ring assemblies\u003c\/li\u003e\n\u003cli\u003eCustom OEM and MRO cylinder rebuilds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOperating Parameters\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -40°F to +230°F (-40°C to +110°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Rating:\u003c\/strong\u003e Up to 3,500 PSI (240 bar) depending on groove design and assembly configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Mineral oil, water-glycol, and compatible synthetic hydraulic fluids\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed:\u003c\/strong\u003e Suitable for low-to-medium reciprocating speeds\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable in standard and custom bore sizes to match your cylinder specifications. Provide bore diameter, groove width, groove depth, and operating pressure for a precision-fit assembly. 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The bronze filler reinforces the PTFE matrix, dramatically improving load-bearing capacity and dimensional stability compared to virgin PTFE — making it the go-to choice for heavy-duty industrial, agricultural, and mobile hydraulic systems.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior wear resistance\u003c\/strong\u003e — Bronze filler extends seal life under high side-load and high-pressure conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow breakout friction\u003c\/strong\u003e — PTFE base material ensures smooth, stick-slip-free piston movement for precise actuation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad chemical compatibility\u003c\/strong\u003e — Resistant to most hydraulic fluids, mineral oils, water-glycol, and phosphate ester fluids\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide temperature range\u003c\/strong\u003e — Performs reliably from -65°F to +450°F (-54°C to +232°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensional stability\u003c\/strong\u003e — Bronze reinforcement minimizes cold flow and extrusion under sustained pressure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop-in replacement\u003c\/strong\u003e — Designed to OEM dimensional standards for fast, straightforward installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHydraulic cylinders in industrial presses and machine tools\u003c\/li\u003e\n\u003cli\u003eAgricultural equipment hydraulic lift and steering cylinders\u003c\/li\u003e\n\u003cli\u003eMobile hydraulic systems (excavators, loaders, cranes)\u003c\/li\u003e\n\u003cli\u003ePneumatic and low-pressure hydraulic actuators\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSpecify bore diameter, rod diameter, and operating pressure when ordering to ensure correct seal geometry and groove fit.\u003c\/p\u003e","brand":"Hercules","offers":[{"title":"PS2472-32","offer_id":43088167829575,"sku":"PS2472-32","price":22.47,"currency_code":"USD","in_stock":true},{"title":"PS2472-40","offer_id":43088167862343,"sku":"PS2472-40","price":23.8,"currency_code":"USD","in_stock":true},{"title":"PS2472-48","offer_id":43088167895111,"sku":"PS2472-48","price":26.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/1204\/2567\/files\/900959F7-BF2F-4D55-A580-2585BB6008E7.jpg?v=1786638988"},{"product_id":"bronze-filled-ptfe-hydraulic-piston-seal-assembly-2","title":"Bronze Filled PTFE Hydraulic Piston Seal Assembly","description":"\u003ch2\u003eBronze Filled PTFE Hydraulic Piston Seal Assembly\u003c\/h2\u003e\u003cp\u003eEngineered for demanding hydraulic cylinder applications, this Bronze Filled PTFE Piston Seal Assembly delivers exceptional wear resistance, low friction, and long service life in high-load, high-cycle environments. 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Manufactured from high-grade polyurethane (PU), these seals offer exceptional abrasion resistance, high tensile strength, and outstanding resistance to hydraulic fluid degradation — making them the go-to choice for industrial, agricultural, mobile, and heavy-equipment hydraulic systems.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Abrasion Resistance\u003c\/strong\u003e — Polyurethane compound withstands continuous piston stroke cycles without premature wear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent Pressure Handling\u003c\/strong\u003e — Maintains a reliable seal under high-pressure hydraulic conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Friction Profile\u003c\/strong\u003e — Reduces stick-slip and energy loss for smoother cylinder operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFluid Compatibility\u003c\/strong\u003e — Compatible with mineral-based hydraulic oils, water-glycol fluids, and most synthetic hydraulic fluids\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Temperature Range\u003c\/strong\u003e — Performs reliably from -40°F to +212°F (-40°C to +100°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Installation\u003c\/strong\u003e — Precision-molded profile ensures correct seating in standard piston grooves\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHydraulic cylinders in industrial machinery\u003c\/li\u003e\n\u003cli\u003eAgricultural equipment (loaders, lifts, steering cylinders)\u003c\/li\u003e\n\u003cli\u003eConstruction and earthmoving equipment\u003c\/li\u003e\n\u003cli\u003eAutomotive hydraulic systems\u003c\/li\u003e\n\u003cli\u003ePneumatic and hydraulic press cylinders\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable in a full range of dash sizes and cross-section dimensions to fit standard and custom cylinder bores. 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Manufactured from high-quality Neoprene (Chloroprene Rubber \/ CR), these piston seals deliver excellent resistance to weathering, ozone, and a broad range of hydraulic fluids — making them a trusted choice for outdoor, marine, and industrial hydraulic applications.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutstanding Weather \u0026amp; Ozone Resistance\u003c\/strong\u003e — Neoprene compound maintains integrity in outdoor and UV-exposed environments where other elastomers degrade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad Chemical Compatibility\u003c\/strong\u003e — Resistant to petroleum-based hydraulic oils, water-based fluids, and mild acids\/alkalis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlame Resistance\u003c\/strong\u003e — Inherent flame-retardant properties make Neo-Fab seals suitable for fire-risk environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGood Compression Set Resistance\u003c\/strong\u003e — Retains sealing force over extended service intervals, reducing maintenance frequency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModerate Temperature Range\u003c\/strong\u003e — Reliable performance from -40°F to +250°F (-40°C to +121°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Molded Profile\u003c\/strong\u003e — Ensures correct groove seating and consistent sealing contact across the full piston stroke\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMarine and offshore hydraulic cylinders\u003c\/li\u003e\n\u003cli\u003eOutdoor construction and forestry equipment\u003c\/li\u003e\n\u003cli\u003eIndustrial presses and clamping cylinders\u003c\/li\u003e\n\u003cli\u003eAgricultural and irrigation equipment\u003c\/li\u003e\n\u003cli\u003eFire-suppression and safety-critical hydraulic systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable in a full range of dash sizes and bore dimensions to fit standard hydraulic cylinder grooves. 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The polyurethane outer seal provides exceptional abrasion resistance and extrusion resistance under high-pressure cycling, while the nitrile energizer maintains constant radial load against the bore for positive sealing at both static and dynamic conditions.\u003c\/p\u003e\u003ch3\u003eKey Performance Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-material construction\u003c\/strong\u003e — polyurethane sealing lip backed by a nitrile energizer for sustained contact force\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh extrusion resistance\u003c\/strong\u003e — 95A durometer polyurethane withstands pressure spikes and side-loading in heavy-duty cylinders\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad fluid compatibility\u003c\/strong\u003e — nitrile energizer compatible with petroleum-based hydraulic fluids, water-glycol, and most mineral oils\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow friction profile\u003c\/strong\u003e — optimized geometry reduces stick-slip and breakout force for smooth piston actuation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide temperature range\u003c\/strong\u003e — suitable for continuous operation in standard industrial hydraulic environments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHydraulic cylinders (mobile and industrial)\u003c\/li\u003e\n\u003cli\u003ePiston rod and bore sealing in MRO and OEM assemblies\u003c\/li\u003e\n\u003cli\u003eConstruction, agricultural, and material handling equipment\u003c\/li\u003e\n\u003cli\u003ePress and injection molding hydraulic systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eMeets dimensional standards consistent with AS568 and ISO groove specifications. 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